Pith Number

pith:NKUXYOKW

pith:2017:NKUXYOKWCKSZD7TJUZSVGP4IPN

not attested not anchored not stored refs pending

Fast algorithm of adaptive Fourier series

Min Ku, Tao Qian, You Gao

arxiv:1711.08604 v1 · 2017-11-23 · math.NA · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NKUXYOKWCKSZD7TJUZSVGP4IPN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:16:30.197730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6aa97c395612a591fe69a665533f887b5bb595c6c969a105264186b37ae363f5

Aliases

arxiv: 1711.08604 · arxiv_version: 1711.08604v1 · doi: 10.48550/arxiv.1711.08604 · pith_short_12: NKUXYOKWCKSZ · pith_short_16: NKUXYOKWCKSZD7TJ · pith_short_8: NKUXYOKW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NKUXYOKWCKSZD7TJUZSVGP4IPN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6aa97c395612a591fe69a665533f887b5bb595c6c969a105264186b37ae363f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0f75eb7a050b2a6a34abb764e5199e4e21c5dcc093126b3c3ca07c4f3a3267a",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-11-23T08:05:30Z",
    "title_canon_sha256": "8fcbc4ec0af03bab132d57d1f1d7d5e8b1e0ff95b17c387cba8da1323cb96ca8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08604",
    "kind": "arxiv",
    "version": 1
  }
}